Update publication link

app.py

@@ -120,7 +120,7 @@ with gr.Blocks() as demo:
 
     gr.Markdown("<p style='text-align: center'><a href='https://github.com/mims-harvard/PINNACLE'>Github Repo</a>" \
                 "| <a href='https://zitniklab.hms.harvard.edu/projects/PINNACLE/'>Documentation</a> " \
-                "| <a href='https://www.biorxiv.org/content/10.1101/2023.07.18.549602/'>Publication</a></p>")
+                "| <a href='https://www.nature.com/articles/s41592-024-02341-3/'>Publication</a></p>")
 
     protein_submit_btn.click(plot_protein_emb, inputs = [protein], outputs = [protein_plot, protein_context_df])
     celltype_submit_btn.click(plot_celltype_emb, inputs = [celltype], outputs = [celltype_plot, activated_proteins_df])